| Allegro CL version 7.0 Unrevised from 6.2 to 7.0. | |||||||||
Arguments: nil
This function may be used to determine whether the user is trying to initiate a drag, rather than performing a simple click. An application may want to initiate a drag-and-drop in a mouse-left-down method only if this function returns true, for example.
wait-for-drag waits until either the left mouse button is up or until
the mouse moves at least *start-drag-slack*
pixels from where it was when wait-for-drag was called, and then
returns. If the left mouse button was pressed when wait-for-drag was
called and continues to be pressed until the mouse moves at least
*start-drag-slack* pixels, then true is returned;
otherwise nil is returned.
Copyright (c) 1998-2006, Franz Inc. Oakland, CA., USA. All rights reserved.
Documentation for Allegro CL version 7.0. This page was not revised from the 6.2 page.
Created 2004.8.21.
| Allegro CL version 7.0 Unrevised from 6.2 to 7.0. | |||||||||